What classification of rock covers approximately 75% of the Earth's surface?

More Questions:

Canonized in 1933, what famous nun is the patron saint of the French pilgrimage town of Lourdes?

What type of alcohol is typically used to make a mint julep?

The use of astronomical phenomena to predict earthly and human events is called what?

Who wrote the horror novel "Dracula"?

What is the modern day equivalent of Dutch Guiana?

The Appalachian Trail runs over 2,000 miles from Maine to what southern state?

What does Flora refer to?

What word for a part of the eye is also the name of the Greek Goddess of the Rainbow?

How many colors are there in the spectrum?

What actor was the narrator in the movie "The Texas Chain Saw Massacre"?

What former musician played bass on Madonna's "Like a Prayer"?

What film starred Helen Hunt, Cary Elwes and Bill Paxton?

Who played the role of the US president in the movie "Being There"?

In what decade did the Dust Bowl devastate US Midwest farmers?

In the opera "Don Giovanni", what was Leporello job?